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Radish - Diseases, Pests and Problems





Basic Information



Problem: Root Maggots
Affected Area: Root

Description: Leaves wilt and growth is stunted. Insect is common, white, root feeding maggot. 1/4" long adult flies emerge from the soil about the time cherries bloom and lay eggs at base of plants in surrounding soil. Legless larvae feeds on host plant for three weeks, riddling the roots with brown tunnels before they pupate Two or three generations can occur each growing season.

Control: Use Diazinon before planting as a soil treatment. Rotate from year to year.


Problem: Flea Beetle
Affected Area: Leaf

Description: Tiny holes ?pinholes? chewed in leaves by adult insect. Adult insects are 1/16" long, hard-shelled, shiny, dark-colored beetles that jump when disturbed. Slender, whitish, cylindrical larvae feed in or on roots but root damage is generally minimal.

Control: Dust with Rotenone. Keep debris removed. Rotate location of planting from year to year.






Radish

Tips

These are cool season crops and develop a strong flavor in hot weather.

 

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